A Tory minister has basically come out for Brexit and he's already being attacked by his party

Leader of the House of Commons Chris Grayling has all but backed
Britain leaving the EU in a carefully-worded newspaper
article. Writing
in the Telegraph on Thursday, cabinet minister Grayling, who
calls himself a Eurosceptic, laid out his long-held frustrations
with Britain's membership of the European Union and said that he
believes the nation has reached "a crucial crossroads."

Here are the most important bit from Grayling's article (emphasis
ours).

And so we have reached what I believe is a crucial
crossroads for the United Kingdom. The crisis in the
eurozone and the migration challenge have led to calls for still
more integration and a move towards much greater political union.
It is a path that the UK will not and should not
follow ...

Most people in Westminster know that I hold strong
Eurosceptic views. It is time for Britain to vote again
on its future in Europe. But I also strongly believe that David
Cameron is right to seek new terms for our membership before that
vote happens. I am someone who believes that simply staying
in the EU with our current terms of membership unchanged would be
disastrous for Britain.

Grayling's article comes after Prime Minister David Cameron
said last week he will allow his ministers to campaign
for Britain to leave the EU, as long as they wait until he has
finished
his renegotiation with the European Union first. That's why
Grayling has been so careful with his words, saying that he
supports Cameron's renegotiation, but also stating it would
be disastrous for Britain to stay in the EU by adding the caveat
"with our current terms of membership unchanged."

It was
reported in the Telegraph Cameron was forced into
allowing his ministers to back the leave campaign because
Grayling had threatened to resign.

Grayling might have tried to be careful with his words, but
his article has been interpreted as sign that he is going to
campaign for Britain to leave the EU by at least one pro-EU
colleague. Conservative MP Damian Green told the BBC's
Today Programme that Grayling was "going along the tightrope
of overtly breaking the rules the Prime Minister set down for the
cabinet" and that he was "peddling myths about Britain in
Europe."

It's a carefully written article, going along the tightrope
of overtly breaking the rules the Prime Minister set down
for the cabinet last week. I think the substance is more
important than the process, I want to challenge some of the
things Chris is saying, I think he's peddling myths about Britain
in Europe.

Both Grayling and Green emphasised the importance of having a
civilised debate with the Conservative Party over Britain's
membership of the EU, but this has historically been much easier
said than done. It will be interesting to see if
the debate of the EU remains civil given that senior
members of the party appear likely to take a different line to
party leadership.